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Diptera.info :: Identification queries :: Diptera (adults)
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unknown setacera?
Mario Renden
#1 Print Post
Posted on 16-12-2023 23:21
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I took these pictures of a possible setacera spec. on 12th November 2023 in Den Helder, Netherlands.

Can someone please identify this?

Thanks a lot.

Greetings,
Mario Renden
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Mario Renden
#2 Print Post
Posted on 16-12-2023 23:21
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picture 2
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Mario Renden
#3 Print Post
Posted on 16-12-2023 23:22
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picture 3
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Mario Renden
#4 Print Post
Posted on 16-12-2023 23:22
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Mario Renden
#5 Print Post
Posted on 16-12-2023 23:22
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picture 5
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Mario Renden
#6 Print Post
Posted on 16-12-2023 23:22
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picture 6
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Mario Renden
#7 Print Post
Posted on 16-12-2023 23:23
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picture 7
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Mario Renden
#8 Print Post
Posted on 30-12-2023 23:15
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picture 8
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Paul Beuk
#9 Print Post
Posted on 10-01-2024 10:31
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Setacera should have five pairs of dorsocentral setae. On the images I can make out four pairs at the best. Can you check?
Paul

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Mario Renden
#10 Print Post
Posted on 20-01-2024 00:40
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Dear Paul,

Unfortunately I can't check that anymore. The pictures on diptera.info are my best pictures. I have thrown this fly away after it has been identified as setacera aurata on waarneming.nl by Niels-Jan Dek.

Greetings,
Mario Renden
 
Paul Beuk
#11 Print Post
Posted on 25-01-2024 09:24
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Ah, makes my point you should never throw anything away... Grin
Paul

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nielsyese
#12 Print Post
Posted on 30-01-2024 20:30
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Let me explain why I think this should be Setacera aurata: the mouth margin has long hairs, there are at least more than 3 postsutural dorsocentrals. On picture 5, 1+3 dc are visible (I think the 2nd postsutural dc is broken because there is a gap). The fly has a green metallic shine. That would leave the genera Ephydra, Setacera or maybe Paracoenia. The last one is a more dark brown species with darkened crossveins, different dusting pattern and other genitalia. The difference between Ephydra and Setacera is more difficult to judge, but at least on picture 3 and 7 you can see the typical long hair on the 3rd antennal segment for Setacera. On picture 2 and 5, no prescutellar acrostichals are present. By the shape of the terminalia in picture 8 I came to the conclusion it should be a female of Setacera aurata.
Best wishes, Niels-Jan Dek
 
Paul Beuk
#13 Print Post
Posted on 02-02-2024 09:00
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TumbsUp
Paul

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